Silo-roof-elevating device.



' D. H. LEV-AN.- SILO ROOF ELEVATING DEVICE.

APPLICATION FILED FEB,- 1,5. 191s.

Pa tnfoedJune 20 2 SHIRTS-SHEET I.

6 1 Hz a H 0.... 2 w my hm 0w 4M2 B t D H LEVAN SILO ROOF ELEVATING DEVICE. APPLICATION FILED FEB- 15, 1913. 1,188,289.

um, mtoz' 111 m ear Be'it lrnmvn that I. DANIEL H..=LEVAN, a

citizen. of the United States, residing at 'Bel'leiontaine'." in the county of, Logan'and State of Ohio, have invented new and useful impi oi ements 1n b1lolioofEle"\ ating bevices, ofwhichthe following is a spee nca;

'tion.

for 'e'l'evati'ngthe roof of a silo fl'hislinrention relates to silos, andit has particular reference to an improved device 1111 order to cable material to be placed therein, after which 'thexroot may heagain lowered for arrangement the purpose of protecting the contents. I

: A f rther ohjectot the invention is to so construct the iin'proyed device that the roof actuated thereby, gwhe'n lowered, shall, he

firmly secured or locked in position, I as against accidental displacement. ll itli these and other ends in View wh ch will readily-appear asthe nature of the invention is better understood, the same- "consists in the improved construction and novel and which will he hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of the invention, it bein however, understood that no limitation is necessarily made to the precise structural details" therein exhibited,

but that changes, alterations and modifications within the scope of the claims may be resorted to when desired. In the drawings,-,-Figure 1' is-a side elevation, showing theini'enti'on as applied to a silo of ordinary .cylii'idrical and showing the-"roof elevatedf Fig. 2 is a vertical sectional view of the same, showing the roof lowered. Fig. 3 is atop plan View. Fig. 4 is a horizontal sectional View taken on the line Ti -4 in Fig. 1. Fig. 5 is aside elevation taken at right. angles to Fig. 1 with the roof lowered. Fig. 6 is a sectional detailyiew taken on the line 6- -6 in Fig. 1.

Corresponding parts in the several'figiires are denoted by like characters of reference. T he silo 1 may he of cylindrical or of any dependent of the sidewalls, said roof struc- I ture being proyided' at opposite sides thereof with downwardly extending arms or brackets 3, 3' which are connected with the roof by meansoi obliquely disposed 'rein snzo-noor-rsrnvnrme neuron.

Specification of Lettrsfateut. I

combination of parts construction drum reyerselyto the rope 14. it follows 'may be duplicated by. a similar rope conr ten-ielia' ae sellers. 1

fei'cin'g liraces 4L, Thea-r1215 3 ere'guided through keepers o, 5 and-6, 6 on the-sides of the silo wall,the'uppermost. keepers beingproyided with guide wheels 7 which are su tably supported for rotationtheredn. n lountedv i'or rotat on in suitable bearings consisting brackets 8 mounted oneneside ot-the wall oi; the. sale or in any "Q lher eonvenient location are winding drumsfi and'lll having intermeshing gears 11. The gelai'as soeiate'd with one of the drums also mesh'ss with a worm .192 which-may he turned by means or a crank A flexible element; such as a rope or sole 1%, is connected at 7' one end with the drum 9,. and saidjrope or cable is guided over the guide wheel 7 assmciated with the .lieeper t fat one side of the I silo the otherend said" rope or cable be ing connected with the lower end of the arm 3 guided through said keeper and through.- the keeper 6 helow'the same. A similar flexible element, such as rope or cable 15,,-

is connected one end. ",ith the drum 10,

said rope or cable being guided over a series of suitably arranged flanged guide whee s '18 and over the guide wheel-l supported by the keeper 5" at the opposite side'of the silo. the other end of said rope or cable heing connected with the lower extremity of the- 5 arm. 3. guided through the said keeper 5' l and through the Keeper .6"'below the same.

It willbe evident that by manipulating the crank 13 in one direction, the drums 9, 10 will be rotated to wind thereon the ropes or. cables 1%, 15, thereby lifting or raising the roof, as will be seen in'Fig. 1. By Te hating the crank in the opposite direction the roof will be lowered by g avity. For the pur pose of assisting ins-lowering the roof, the lower end of the arihfil is connected by a flexible element, such :as a rope 17, with the drum 9 in such; fashioii as to wind on said that when the crank 13 is manipulated for the purpose oflowering the root, it will not only be lowered by gravity, but also by the stress exerted by the rope l7. Said rope 1? meeting the lower end of the arm 3 with the drum 1D, suitable guiding means. being proyided with such rope. The rope 17 will not only serve to positively lower. the roof of the against the upward pressure of the contents of they silo, but it will also 5 serve to lock the roof securely in. any pos1- t-ion to which it maybe adjuted, y 1 1 isame. may be associated with mounting it with I greatly varied, and no limitation 1s lntended ing movement in a reverse direction to that caused by the hoisting elevating tackle;

' Suitable hoisting tackle including a block {18 and a rope or cable 19 supportinga grasping device in tlie nature E 20 and a pulley,

the roof of the for thepurpose of elevat silo to be utilized pipe or duct through mg. a

fashion.' It is in this respect.

is claimed as new, is 1 I 1. A silo. comprising a wall guides secured to the .Wiill --adjacent the upper end thereof, .a movably supported roof slidable through said guides, a pulley journaled in each of said-guides, av drum mount- -a. pa1'r of tongs which ensilage maybe conducted into'the silo by means of of the silo is elevating the roof structure for the'admisrection forforcibly lowering said roof. 2. A $110 comprislng in combination a Wall structure, a roof structure supported and guided for vertical movement, means for sion of material, and means for forcibly moving said roof structure in a downward direct1on: against upward pressure of'the contents of thesilo. Having thus described the invention, what y In testimony whereof I aflix mysignature in presence oftwo witnesses. p

DANIEL H. LEV N \Vitnesses:

SARAH HooKErr, KATE LEVAN. 

